*/
	public static function sidebar_support() {

		_deprecated_function( __METHOD__, '7.1.0' );

		$theme = wp_get_theme();

		$id = 'sidebars';

		if ( ! current_theme_supports( 'lifterlms-sidebars' ) && ! in_array( $theme->get_template(), llms_get_core_supported_themes(), true ) ) {

			$msg = sprintf(
				__( '<strong>The current theme, %1$s, does not declare support for LifterLMS Sidebars.</strong> Course and Lesson sidebars may not work as expected. Please see our %2$sintegration guide%3$s or check out our %4$sLaunchPad%5$s theme which is designed specifically for use with LifterLMS.', 'lifterlms' ),
				$theme->get( 'Name' ),
				'<a href="https://lifterlms.com/docs/lifterlms-sidebar-support/?utm_source=notice&utm_medium=product&utm_content=sidebarsupport&utm_campaign=lifterlmsplugin" target="_blank">',
				'</a>',
				'<a href="https://lifterlms.com/product/launchpad/?utm_source=notice&utm_medium=product&utm_content=launchpad&utm_campaign=lifterlmsplugin" target="_blank">',
				'</a>'
			);

			LLMS_Admin_Notices::add_notice(
				$id,
				$msg,
				array(
					'dismissible'      => true,
					'dismiss_for_days' => 730, // @TODO: there should be a "forever" setting here.
					'remindable'       => false,
					'type'             => 'warning',
				)
			);

		} elseif ( LLMS_Admin_Notices::has_notice( $id ) ) {

			LLMS_Admin_Notices::delete_notice( $id );